Navigation system with unique audio tones for maneuver notification
US6363322B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1999 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Dec 22, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3629
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vehicle navigation system provides non-voice audible maneuver instructions to a driver immediately prior to an upcoming maneuver. When the vehicle is very near the execution of the upcoming maneuver, it is preferable to provide a non-voice audible maneuver instruction that is always consistent with the upcoming maneuver. After a short familiarization period the driver will intuitively identify a particular tone or series of tones with a particular maneuver. Further, by only providing the non-voice audio maneuver instruction within a relatively short distance prior to the upcoming maneuver the driver will identify the tone(s) with the immediacy of the upcoming maneuver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.